Statical Significant Analysis of Hardness of Poly Vinyl Alcohol Crosslinked Glutaraldehyde Using Tukey HSD Method

Abstract

The non-biodegradable polymer occupying the world leads to many issues concerning global warming and other related problems. Due to these issues, there is a need for biodegradable polymers to overcome these issues. This paper focussed on processing polyvinylalcohol (PVA) crosslinked with glutaraldehyde(GA) and studying the harness of crosslinked polymer. The polyvinylalcohol is crosslinked from 0 to 40 volume percent of glutaraldehyde than post cured immersed in 2 mole of Sulfuric acid (H2SO4) for 24 hours to attain complete crosslinking. The Excel Durometer Shore D Hardness tester was used to determine the hardness of PVA and PVA crosslinked GA polymer composites as per ASTM D2240 standards. The influence of glutaraldehyde crosslinking drastically improves the polymer's hardness by up to 15%, and further marginal changes are found. The Tukey HSD method is used to study the significant level and accomplish the optimum crosslinking percentage. From the Tukey HSD test, it is found that the f value more than 5.35 are high level statically significant.